High Energy Theory Seminar: Free-falling in Quantum Spacetime
Maulik Parikh (Arizona State University)
Gravity is usually regarded classically, obeying Newton's law or Einstein's equations. Here I will show that, when the gravitational field is treated quantum-mechanically, the classical trajectories of freely falling…
Condensed, Soft & Living Matter Seminar: Motility regulation as a self-organization principle
Julien Tailleur (MIT)
Equilibrium statistical mechanics tells us how to control the self-assembly of passive materials by tuning the competition between energy and entropy to achieve desired states of organization. Out of…
Astrophysics Seminar: "TBA"
Thavisha Dharmawardena (NYU)
High Energy Theory Seminar: Universal Bounds in interface conformal field theories
Andreas Karch (UT Austin)
Critical phenomena in the presence of interfaces provide a much richer arena than their more studied cousin of boundary critical phenomena. In this talk, I'll review certain observables that are new and unique…
Experimental Particle Physics Seminar: Development of high precision 4D-trackers for future experiments
Artur Apresyan (FNAL)
I will present recent progress towards the development of 4D-trackers with high granularity in position in time. As future colliders move to higher energy collisions, with increased particle occupancy, the need…
Penn Science Café: There is No One Way To Teach Math
Penn Science Café
Robin Penmantle (Speaker) & Bill Ashmanskas (Moderator)
Get ready for a lively, interactive Science Café with Penn math professor Robin Pemantle and Penn physics senior lecturer Bill Ashmanskas, both members of Center for Excellence in Teaching, Learning, and Innovation’…
High Energy Theory Seminar: Gravitational waves with astrometry in the Gaia era
Deyan Mihaylov (Case Western Reserve University)
Gravitational waves have a periodic effect on the apparent positions of stars on the sky. This effect can be quantified and ultra-precise astrometric measurements (like the ones from Gaia)…
Condensed, Soft & Living Matter Seminar: Quantum Control of Quantum Materials
Matteo Mitrano (Harvard)
Coherently engineering quantum states with light is a key frontier in the control of quantum materials. Over the last two decades, ultrafast lasers have revealed a variety of emergent topological, magnetic, and…
Colloquium: Discoveries with the JWST, and what comes next
John C. Mather (NASA) Physics Nobel 2006
The JWST, with its 6.5 m hexagonal mirror and its 4 infrared instruments, has yielded remarkable surprises. The first galaxies are brighter and hotter than expected, and they aren’t round, but are elongated…
High Energy Theory Seminar: Comments on the density matrix of the universe in two dimensional quantum cosmology
Finn Larsen (UMichigan)
I discuss work in progress on obtaining a reasonable density matrix of the universe in two dimensional quantum cosmology. I will do so by comparing aspects of the Hilbert space of closed universes in JT gravity…